Let's divide 91931490 by 129
We want to divide 91931490 by 129.

Moving on to step 1:
If we divide 9 by 129, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 129

Step 2:
129 goes into 91 0 times with a remainder of 91.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 91 and we're left with 91.
Grab the next digit (9) from the dividend, add it to 91, then carry on: 919 / 129

Moving on to step 3:
919 divided by 129 is 7 with a remainder of 16.
The next digit of our result is 7. 
Result so far: 7.0
The remainder is 16 after subtracting 903 from 919.
Grab the next digit (3) from the dividend, add it to 16, then carry on: 163 / 129

Moving on to step 4:
If we divide 163 by 129, we get 1 and a remainder of 34.
The next digit of our result is 1. 
Result so far: 71.0
The remainder is 34 after subtracting 129 from 163.
Append the next digit (1) from the dividend to 34 and continue with: 341 / 129

Moving on to step 5:
When dividing 341 by 129, we get 2 with a remainder of 83.
Record the quotient 2 as the next digit in the result. 
Result so far: 712.0
Subtract 258 from 341 to get 83.
Grab the next digit (4) from the dividend, add it to 83, then carry on: 834 / 129

Let's proceed to step 6:
When dividing 834 by 129, we get 6 with a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 7126.0
Subtract 774 from 834 to get 60.
Take the next digit (9) from the dividend and append it to 60, then repeat: 609 / 129

On to step 7:
129 goes into 609 4 times with a remainder of 93.
The next digit of our result is 4. 
Result so far: 71264.0
Deduct 516 from 609 and we're left with 93.
Fetch the next digit (0) from the dividend, attach it to 93 and continue: 930 / 129

Going ahead to step 8:
The number 129 fits into 930 7 times, leaving a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 712647.0
Subtract 903 from 930 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 9:
270 divided by 129 is 2 with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 712647.2
The remainder is 12 after subtracting 258 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 10:
129 can be fit into 120 0 times, resulting in a remainder of 120.
Record the quotient 0 as the next digit in the result. 
Result so far: 712647.2
Subtracting 0 from 120 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 11:
When dividing 1200 by 129, we get 9 with a remainder of 39.
Use 9 as the next digit of our solution. 
Result so far: 712647.209
Deduct 1161 from 1200 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 12:
If we divide 390 by 129, we get 3 and a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 712647.2093
Subtract 387 from 390 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 13:
129 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 712647.2093
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
If we divide 300 by 129, we get 2 and a remainder of 42.
Record the quotient 2 as the next digit in the result. 
Result so far: 712647.209302
Deduct 258 from 300 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 15:
420 divided by 129 is 3 with a remainder of 33.
Record the quotient 3 as the next digit in the result. 
Result so far: 712647.2093023
If we subtract 387 from 420, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 16:
129 can be fit into 330 2 times, resulting in a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 712647.20930232
Subtracting 258 from 330 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 712647.20930232 with a remainder of 7.2e-08.